Quantum Dots Control Symmetry

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lead sulfide quantum dots

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quantum dots

Phys Org

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Science

Light-induced symmetry changes in tiny crystals allow researchers to create materials with tailored properties

Summary

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Researchers at the U.S. Department of Energy's Argonne National Laboratory have discovered how to use light to change the arrangement of atoms in these minuscule structures.

Quantum dots made of semiconductor materials, such as lead sulfide, are known for their unique optical and electronic properties due to their tiny size.

Scientists have learned that they can intentionally cause symmetry breaking—or symmetry restoration—in quantum dots to create new materials with unique properties.

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